1 . He boarded the airplane as if he ________ an experienced traveller, yet he had never left town before.

A．is

B．were

C．has been

D．had been

2 . 我想是我们该寻求法律意见的时候了。 (seek)
I think it’s time we __________________.

3 . I highly recommend that anyone interested in converting schools ________.
我强烈建议对转学感兴趣的人首先参加当地的学校会议。

4 . A proposal was made to the State Council that Beijing hutongs________ (preserve) as part of the effort to retain China’s cultural legacy. (所给词的适当形式填空)

5 . If the doctor ________ available last night, the child ________ saved.

A．had been; was	B．had been; would have been
C．were; would be	D．is; will be

6 . Without your selfless assistance, we ________ the doctors and nurses to the earthquake-stricken area last week.

A．didn't take	B．can't take
C．couldn't have taken	D．should have taken